Master substrate and method of manufacturing a high-density...

Details Master substrate and method of manufacturing a high-density... Master substrate and method of manufacturing a high-density...

G - Physics

11

B

G11B 7/26 (2006.01) G11B 7/243 (2006.01)

Patent

CA 2584101

The present invention relates to a master substrate for optical recording comprising: a substrate layer (26), a first recording layer (12) and a second recording layer (16) above the substrate layer (26), and an interface layer (14) between the first recording layer (12) and the second recording layer (16), the recording layers (12, 16) comprising a phase-change material, the properties with respect to chemical agents of which may be altered due to a phase-change induced by projecting light on the recording layers. The present invention further relates to a method of manufacturing a high~density relief structure.

La présente invention porte sur un substrat maître d'enregistrement optique comprenant : une couche superficielle (26), une première couche d'enregistrement (12) et une seconde couche d'enregistrement (16) située au-dessus de la couche superficielle (26) et une couche d'interface (14) placée entre la première (12) et la seconde couche d'enregistrement (16), ces couches d'enregistrement (12, 16) comprenant un matériau à variation de phase dont les propriétés par rapport aux agents chimiques peuvent être modifiées du fait d'une variation de phase induite par la projection de lumière sur les couches d'enregistrement. La présente invention porte également sur un procédé de fabrication d'une structure en relief haute densité.

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